On Fri, Apr 2, 2010 at 10:20 PM, Steve Langasek <steve.langa...@canonical.com> wrote: > What is the risk of regression here by downgrading? Is use of vgabios > entirely broken today for all users to where things can only get better, > or are there some cases where it works?
The only users positively affected by the new upload are those that want to use kvm or qemu with the -vga std option. This VGA mode adds higher resolutions to the SDL window than the default cirrus driver (which only allows up to 1024x768). I can confirm that the current vgabios is broken for -vga std, and is working with the pending upload. Most users of kvm/qemu either don't use SDL at all (ie, they are using virt-manager, virsh, or Eucalyptus to launch VMs), and of the remaining users that do launch KVM from the command line and SDL, most of those are probably just using the default cirrus driver. Thus, I suspect that the affect users of this problem are a vocal minority. That said, I would love to see this fixed for them. Anyone who launches KVM directly from the command line, and toys around with the obscure QEMU options are a friend to me, as they're helping test the dark corners of qemu-kvm. I have seen no negative effects thus far of "downgrading" vgabios. And I really, really, really like the idea of being code-identical with the vgabios that upstream QEMU released with qemu 0.12.3, as our support burden is shared. That said, if we upload this, and the "majority" of qemu/kvm users (those not using -vga std) are negatively affect, I'm perfectly fine with reverting this change in a heartbeat, and asking someone to track down the precise part of the diff that causes/fixes the current issue. > vgabios has two reverse-dependencies in lucid: qemu-common and bochs. > Has anyone regression-tested this for bochs? I suspect that the bochs package can possibly be dropped from the archive. I think qemu was the only user of bochs previously, and upstream QEMU has switched away from bochs to seabios and vgabios instead. This needs to be investigated a bit more (perhaps a post on ubuntu-devel, in case anyone else knows of what in Lucid might still require bochs. :-Dustin -- kvm with -vga std is broken since karmic https://bugs.launchpad.net/bugs/513273 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
